ecgdetect

精细积分法 求地震反应谱 可以输入阻尼比 周期等参数(Precise Integration Method Response Spectrum)

spiht matlab,其中包括SPIHT算法的编码和解码(spiht Matlab, including SPIHT coding and decoding)

this program try to calculate N dimensional histogram in one of popular way

2ASK信号的正交解调，包括2ASK信号的产生，与本地载波混频，低通滤波，求包络，恢复出原始信号等(the demodulation of 2ASK)

说明：  在matlab2019B中，已经将princomp函数改为了pca函数，功能相同，函数名改变，所以如果要使用，记得将老版本的代码中的princomp改为pca。(In MATLAB 2019b, the principal function has been changed to PCA function. The functions are the same, and the function name changes. So if you want to use it, remember to change the principal function in the old version of the code to PCA.)

说明：  信号采样 欠采样 过采样 临界采样 信号频谱 采样频率(Signal sampling undersampling oversampling critical sampling signal spectrum sampling frequency)

这是学习编程很好的书籍，值得参考和学习哦，很实用，很详细(This is a very good book to learn programming, it is worth for reference and learning Oh, very practical, very detailed)

小数据量计算利亚普诺夫指数(Liapunov index of small amount of data calculation)

用于MATLAB作图中，多张图的合并（里面的文件路径需要根据需要更改）(For the MATLAB plot, the multiple number of pictures merger (inside the file path needs to be changed as needed))

depelopment research on watermarking